Right now I use photopost, however, I'm considering hiring someone to make a hack/addon for it, but before I do so, I want to know which one would be easier to create the hack for, for vbgallery/photopost?

Basically what I'm looking for is two upload fields when the user wants to upload photos. One field will be the upload field for the actual image, and the second upload field will be for the thumbnail.

Due to my design, I would like all thumbnails of the uploaded pictures to have the same height and width, and I like the quality of thumnails to remain high. The sizing doesn't have to be automatic, as it would be the users responisibility to provide the right size thumbnail. This way, when the user uploads a thumbnail, he or she is forced to upload a set size thumbnail, for example a 65 x 65 px wide thumbnail to go along with the image.